Ncert Exercises & Solutions

The correct statement among the following regarding birth control pills is:

1.	They contain estrogen only.
2.	They contain progesterone only.
3.	They contain a mixture of estrogen and progesterone derivatives.
4.	Progesterone enhances ovulation.

HINT: Birth control pills contains a mixture of estrogen and progesterone derivatives.

Explanation:

STEP 1:

The birth control pill is a type of contraception that contains hormones that prevent pregnancy.

Hormones in birth control pills prevent pregnancy by:

Stopping or reducing ovulation (the release of an egg from an ovary).
Thickening cervical mucus to keep sperm from entering the uterus.
Thinning the lining of the uterus so that a fertilized egg is less likely to attach.

STEP 2:

Most birth control pills are "combination pills" containing a mix of the hormones estrogen and progesterone to prevent ovulation.